RS Automation OEMax CSD7, User Manual, Page: 258 / 332

9-6
Application
CSD7 Servo Drive (EtherCAT)
Motor Brake Control
Motor Brake
If you use the motor with brake, you can use the brake in the following case.
•
If the load is movable by the gravity (e.g.: When applied in the vertical axis control), the
falling of load can be prevented when the power is off or the drive becomes servo-off.
Sequence Output Signal Allocation
To use the motor brake, refer to the “Allocation Method for Sequence Output Signal” on
page 3-18 first and allocate the <BK> signal. The signal for brake control is outputted with
the allocatted pin. The factory setting is OUTPUT#3 (No. 19 and No. 20 pins of I/O).
Circuit Configuration
The </BK> signal is not high current that can control the motor brake directly. Therefore,
the motor brake cannot be connected directly to the drive and used. So the motor brake
should be controlled indirectly by configuring the external relay circuit. Refer to the indirect
control circuit using a relay as shown in the figure below.
</BK> output is the sequence output signal, so the pin number of </BK> signal can be
selected by the user. The </BK> pin number in the figure below is example in case of
factory setting.
Vertical Load Vertical Load
Falling due
to Gravity.
Falling due
to Gravity.
When using the vertical
axis load, balance the
weigh if it is possible
mechanically.
Motor with
brake Motor with
brake